生物标志物 生物标志物
Hisashi Nojima1, Mai Yamamoto1, Jo Kamada1
1FUJIREBIO Inc., Hachioji, Tokyo, Japan.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
脑脊液中的Lumipulse G GFAP测定显示了区分阿尔茨海默病 (AD) 和非AD病例的潜力. 这种质纤维酸蛋白 (GFAP) 测试与其他AD生物标志物一起提供了宝贵的见解.
科学领域:
- 神经学 神经学
- 生物标志物发现发现
- 诊断检测试验 诊断检测试验
背景情况:
- 状纤维酸蛋白 (GFAP) 是神经系统疾病的公认生物标志物.
- Lumipulse G GFAP血测定是一种商业上可用的诊断工具.
- 本研究评估了GFAP测定在脑脊液 (CSF) 样本中的性能.
研究的目的:
- 评估Lumipulse G GFAP测定在CSF中的临床性能.
- 为了确定GFAP水平是否可以区分阿尔茨海默病 (AD) 和其他认知疾病.
- 评估GFAP作为一种潜在的生物标志物,与已建立的AD标志物一起.
主要方法:
- 使用完全自动化的Lumipulse系统 (CLEIA平台).
- 评估了30个脑脊液样本 (每样10个来自AD,MCI和认知正常的个体).
- 同时测量了GFAP,β-粉样蛋白 (Aβ40,Aβ42) 和pTau181水平.
主要成果:
- 在GFAP测定显著差异化粉样蛋白积累组 (p <0.05).
- GFAP与pTau181 (r = 0.588) 显示了中度的相关性.
- 接收器操作特征 (ROC) 分析给出了0.72的曲线下的面积 (AUC),用于区分粉素阳性受试者.
结论:
- 在CSF中的Lumipulse G GFAP测定显示了区分AD与非AD病例的潜力.
- GFAP可以作为阿尔茨海默病的有价值的生物标志物,补充Aβ40,Aβ42和pTau181.
- 需要进一步的研究来调查其他神经系统疾病中的GFAP升高.
相关概念视频
01:20Blood Studies for Cardiovascular System I: Cardiac Biomarkers
749
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
749
01:19Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
516
Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
516